13550-0804 STF 1788 AB (HD 121325)

 
 
13h 54m 58.20s -08° 03' 31.9" P.A. 100.00 sep 3.7 mag 6.68,7.26 Sp F8V+G0 dist. 33.08 pc (107.91 l.y.)
 
 
Coord 2000 13550-0804 Discov num STF1788 Comp AB Coord arcsec 2000 13 54 58.20 -08 03 31.9
Date first 1825 Date last 2019 Obs 254
Pa first 52 Pa last 100.1 P.A. Now (θ) 100.1°
Sep first 2.8 Sep last 3.739 Sep. Now (ρ) 3.739"
Mag pri 6.68 Mag sec 7.26 delta mag (ΔM) 0.58 Spectral class F8V+G0 (yellow-white/yellow)
Pri motion ra -173 Sec motion ra -169
Pri motion dec -033 Sec motion dec -045
Notes N O (See Notes, Orbital solution)
rPM=0.072 (< 0.3, Physical double)
This double is physical.
 
 
13550-0804 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 121325 139618 13 54 58 -08 03 32 STF 1788 AB 2019 254 100 3.7 6.68 7.26 0.58 Y <===
Show 139618 13 54 58 -08 03 32 STF 1788 AC 2015 17 298 112.3 6.68 10.80 4.12
Show 139618 13 54 58 -08 03 32 STF 1788 AD 2015 16 211 143.5 6.68 11.69 5.01
Show 139618 13 54 58 -08 03 32 TOK 570 AE 2015 4 228 647.0 6.68 12.43 5.75
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 121325 Constellation Virgo SAO 139618 HIP 67953
Tycho2 5553-01479-1 Gaia DR2 3618910139048607616 HD 121325 HR 5233
GC 18807 ADS 9053 BD BD-07 3728 Distance 33.08
Distance ly 107.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)1036.5072y± 494.0166 Periastron (T)2165.5486y± 381.8551 Semi-major axis (a)5.12252a± 1.82824
Eccentricity (e)0.5392± 0.32446 Inclination (i)73.799°± 17.071 Longitude of periastron (ω)74.113°± 33.372
Node (Ω)114.685°± 15.893 Notesn ReferenceIzm2019
Equinox Last observation2014 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 97.9 3.583
2001 98.1 3.588
2002 98.3 3.593
2003 98.4 3.598
2004 98.6 3.603
2005 98.8 3.607
2006 98.9 3.612
2007 99.1 3.616
2008 99.3 3.620
2009 99.4 3.624
2010 99.6 3.628
2011 99.8 3.632
2012 99.9 3.636
2013 100.1 3.640
2014 100.2 3.643
2015 100.4 3.647
2016 100.6 3.650
2017 100.7 3.653
2018 100.9 3.656
2019 101.0 3.659
2020 101.2 3.661
2021 101.4 3.664
2022 101.5 3.666
2023 101.7 3.669
2024 101.8 3.671
2025 102.0 3.672
2026 102.2 3.674
2027 102.3 3.676
2028 102.5 3.677
2029 102.6 3.679
2030 102.8 3.680


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds13550-0804b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic